UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Television and Video

Notices

Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

Closed Thread
 
Thread Tools
Old 17th Mar 2013, 5:21 pm   #1
ben
Dekatron
 
ben's Avatar
 
Join Date: Aug 2006
Location: Madrid, Spain / Wirral, UK
Posts: 7,484
Default Philips widescreen A10E (yes, I know!)

This set (28PW6305) on powerup, has suddenly started emitting a full-volume blast of static, like a detuned white noise signal but harsher.

The image is OK. Changing AV modes only affects it slightly. The volume control has no effect. Varying the g2 pot does, however, influence the intensity, leading me to think it may be LOPT/supply-related, almost as if there's a kind of sound-on-vision type fault. Never seen it before, just hoping the main micro - usual problem on these - is not the culprit! No obvious drys or discharge from the LOPT. Any thoughts welcome.
__________________
Regards,
Ben.
ben is offline  
Old 17th Mar 2013, 6:17 pm   #2
MALC SCOTT
Octode
 
MALC SCOTT's Avatar
 
Join Date: Aug 2006
Location: Willington, County Durham, UK.
Posts: 1,498
Default Re: Philips widescreen A10E (yes, I know!)

Sounds like the painter IC? Enter the service mode and check errors.
__________________
Malc Scott
MALC SCOTT is offline  
Old 17th Mar 2013, 6:48 pm   #3
ukcol
Rest in Peace
 
ukcol's Avatar
 
Join Date: May 2003
Location: Harlaxton, Lincolnshire, UK.
Posts: 3,944
Default Re: Philips widescreen A10E (yes, I know!)

Hi Ben

If you need a painter chip I have a complete painter PCB that I used to use for test purposes but is now redundant. It is an EDD V 1.0 which if memory serves was the one for the basic TV.

It is yours for the cost of postage if you need it. You can make a small donation (directly) to the Vintage Wireless and TV museum if you like but it is not mandatory.


Colin M
ukcol is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 9:43 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.